STMicroelectronics

LD2982BM50R

LD2982BM50R Description

The LD2982BM50R is a fixed output linear regulator designed by STMicroelectronics, a leading manufacturer in the electronics industry. This device is part of the Power Management Integrated Circuits (PMIC) category and offers a robust solution for applications requiring a stable 5V output at up to 50mA. The regulator is housed in a compact SOT23-5 package, making it suitable for surface mount applications where space is a critical consideration.

Key specifications of the LD2982BM50R include a maximum input voltage of 16V, ensuring compatibility with a wide range of power sources. The regulator maintains a low dropout voltage of 0.225V at 50mA, which is advantageous for applications where the input voltage is close to the output voltage. Additionally, the regulator features a low quiescent current of 150 µA, contributing to high efficiency and reduced power consumption.

LD2982BM50R Features

• Fixed Output Voltage: The LD2982BM50R provides a stable 5V output, ensuring consistent performance in various applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.225V at 50mA, this regulator is ideal for low-voltage applications.
• High Power Supply Rejection Ratio (PSRR): The regulator boasts a PSRR of 45dB at 1kHz, effectively filtering out noise from the input power supply.
• Enable Control Feature: The enable function allows for dynamic control of the regulator's operation, enhancing flexibility in power management.
• Protection Features: Over-current and over-temperature protections ensure reliable operation and safeguard the device from potential damage.
• Compliance and Packaging: The LD2982BM50R is REACH unaffected and RoHS3 compliant, meeting stringent environmental standards. It is available in a tape and reel (TR) package, facilitating efficient handling and assembly.

LD2982BM50R Applications

The LD2982BM50R is well-suited for a variety of applications, particularly those requiring a stable 5V supply with low power consumption. Some specific use cases include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearables where space and power efficiency are paramount.
• Industrial Equipment: Suitable for low-power sensors and control systems that require a reliable and stable power source.
• Medical Devices: Applicable in medical equipment where low dropout voltage and high PSRR are crucial for accurate and stable operation.
• Automotive Electronics: Useful in automotive applications where the regulator's robustness and protection features ensure reliable performance under varying conditions.

Conclusion of LD2982BM50R

The LD2982BM50R from STMicroelectronics is a versatile and efficient linear regulator, offering a stable 5V output with low dropout voltage and high PSRR. Its compact SOT23-5 package and surface mount compatibility make it an excellent choice for space-constrained applications. The regulator's enable control feature and comprehensive protection mechanisms further enhance its reliability and flexibility. While the product is marked as obsolete, its technical specifications and performance benefits continue to make it a valuable option for specific applications in the electronics industry.